class_docstr: Test class for fifth set of voting learner API tests.
class_docstr_tok: ["Test","class","for","fifth","set","of","voting","learner","API","tests","."]
docstr: Set up the tests.
docstr_tok: ["Set","up","the","tests","."]
code: def setUpClass(cls):
      """Set up the tests."""
      for dir_path in [other_dir, output_dir]:
          dir_path.mkdir(exist_ok=True)
  
file_path: skll/tests/test_voting_learners_api_5.py
imports: import unittest
  from itertools import product
  from pathlib import Path
  import numpy
  import pandas
  from scipy.stats import pearsonr
  from sklearn.ensemble import VotingClassifier, VotingRegressor
  from sklearn.metrics import accuracy_score, f1_score, mean_squared_error
  from sklearn.model_selection import PredefinedSplit
  from skll.data import FeatureSet
  from skll.learner.voting import VotingLearner
  from skll.utils.testing import compute_expected_folds_for_cv_testing, make_california_housing_data, make_digits_data, other_dir, output_dir
label_desc: Use image node_id 1 for calling the TestVotingLearnersAPIFive obj's underlying member method code with example usage: obj.setUpClass(cls) without return types